1.unequivocal 明确的
Scientists tell us that the evidence the Earth is warming is "unequivocal."
科学家告诉我们,地球正在变暖这一迹象已不容置疑
2.pervasive 普遍的
A sense of social change is pervasive in her novels.
她的小说里充斥着社会变化的意识
3.catastrophic 灾难性的
The water shortage in this country is potentially catastrophic.
该国水资源的匮乏很可能是灾难性的
4.irreversible 不可逆的
The process of political change in South Africa has reached the stage where it is irreversible.
南非的政治变革进程已经到了不可逆转的阶段
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